Phrasal verbs 7

The world over, people are "turning ? " alternative sources of energy (opting for).

As time "wears ?", the depletion of the earth's natural resources accelerates. (goes by).

The effects of inhaling carbon monoxide "? off" gradually (disappear).

We may not be able to " ? back" the situation fast enough to save endangered species (reverse).

When you have worn ? your clothes, don't throw them away (exhausted the fabric of).

Acid rain gradually "wears ? " exposed outcrops of rock. (corrodes).

The responsibility lies with us; it is useless to think that we can "turn" it "?" to someone else. (give it to sb else).

The footpaths through the hills get "worn d?" by the feet of ramblers (make weaker through pressure).